/*
 * <!--
 *   ~ MIT License
 *   ~
 *   ~ Copyright (c) 2021-2022 yangrunkang
 *   ~
 *   ~ Author: yangrunkang
 *   ~ Email: yangrunkang53@gmail.com
 *   ~
 *   ~ Permission is hereby granted, free of charge, to any person obtaining a copy
 *   ~ of this software and associated documentation files (the "Software"), to deal
 *   ~ in the Software without restriction, including without limitation the rights
 *   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *   ~ copies of the Software, and to permit persons to whom the Software is
 *   ~ furnished to do so, subject to the following conditions:
 *   ~
 *   ~ The above copyright notice and this permission notice shall be included in all
 *   ~ copies or substantial portions of the Software.
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 *   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 */

package com.upupor.framework.thread.completable;

import org.springframework.core.task.TaskDecorator;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;

import javax.annotation.Nonnull;

/**
 * upupor异步线程池装饰器
 *
 * @author Yang Runkang (cruise)
 * @createTime 2022-05-21 23:14
 * @email: yangrunkang53@gmail.com
 */
public class UpuporAsyncContextDecorator implements TaskDecorator {
    @Override
    @Nonnull
    public Runnable decorate(@Nonnull Runnable runnable) {
        // 获取主线程中的请求信息
        RequestAttributes attributes = RequestContextHolder.getRequestAttributes();
        return () -> {
            try {
                // 将主线程的请求信息,设置到子线程中
                RequestContextHolder.setRequestAttributes(attributes);
                // 执行子线程
                runnable.run();
            } finally {
                // 线程结束，清空这些信息,否则可能造成内存泄漏
                RequestContextHolder.resetRequestAttributes();
            }
        };
    }
}
